989166 has 16 divisors (see below), whose sum is σ = 2027088. Its totient is φ = 321600.

The previous prime is 989123. The next prime is 989171. The reversal of 989166 is 661989.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 989166.

It is an unprimeable number.

989166 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1765 + ... + 2256.

It is an arithmetic number, because the mean of its divisors is an integer number (126693).

2⁹⁸⁹¹⁶⁶ is an apocalyptic number.

989166 is an abundant number, since it is smaller than the sum of its proper divisors (1037922).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

989166 is a wasteful number, since it uses less digits than its factorization.

989166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4067.

The product of its digits is 23328, while the sum is 39.

The square root of 989166 is about 994.5682480353. The cubic root of 989166 is about 99.6375545870.

The spelling of 989166 in words is "nine hundred eighty-nine thousand, one hundred sixty-six".